But reality is you could be 90 percent het attraction and 10 percent homo attracted and still be bi. Also there is a difference between sexual and emotional attracted, and it is possible to be sex attracted to both but only romantically attracted to one sex. Overall, when someone say they're bi, you don't really know exactly what that means.

That's pretty much the reason I think a "bisexual community" is something of a lost cause. Men, women, mostly same-sex attracted, mostly het, right in the middle, all over the map.... You can't really organize that. It's just easier to align with whatever is most personally relevant.